Triangle calculator

Please enter what you know about the triangle:
Symbols definition of ABC triangle

You have entered sides a, b, and c.

Entered triangle sides do not satisfy the triangle inequality. The triangle cannot be constructed and therefore solved.

a = 3
b = 9
c = 4

a+c ≤ b
3 + 4 ≤ 9
7 ≤ 9

The sum of the lengths of sides a, c must be greater than the length of the remaining side b.

Look also at our friend's collection of math problems and questions:

See more information about triangles or more details on solving triangles.